Hide shortcut helper on settings/recentapps launch

At the moment, when triggering the settings or recent apps shortcut
the shortcut helper will not go away, obscuring them.

Bug: 324420929
Flag: NA
Test: Flashed on device
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:38d3d9e54942cdb45867745facd241f13988e6b0)
Merged-In: I1ec89ecfc77d743a758b1660567e2b13844528ed
Change-Id: I1ec89ecfc77d743a758b1660567e2b13844528ed